src/mathed/formulabase.C

   1 /*
   2 *  File:        formulabase.C
   3 *  Purpose:     Implementation of common parts of the LyX  math insets
   4 *  Author:      Alejandro Aguilar Sierra <asierra@servidor.unam.mx>
   5 *  Created:     January 1996
   6 *
   7 *  Copyright: 1996-1998 Alejandro Aguilar Sierra
   8 *
   9 *  Version: 0.4, Lyx project.
  10 *
  11 *   You are free to use and modify this code under the terms of
  12 *   the GNU General Public Licence version 2 or later.
  13 */
  14
  15 #include <config.h>
  16 #include <fstream>
  17
  18 #include "Lsstream.h"
  19 #include "support/LAssert.h"
  20
  21 #ifdef __GNUG__
  22 #pragma implementation
  23 #endif
  24
  25 #include "formula.h"
  26 #include "formulamacro.h"
  27 #include "lyxrc.h"
  28 #include "funcrequest.h"
  29 #include "BufferView.h"
  30 #include "lyxtext.h"
  31 #include "gettext.h"
  32 #include "LaTeXFeatures.h"
  33 #include "debug.h"
  34 #include "math_support.h"
  35 #include "math_metricsinfo.h"
  36 #include "support/lstrings.h"
  37 #include "frontends/LyXView.h"
  38 #include "frontends/font_metrics.h"
  39 #include "frontends/mouse_state.h"
  40 #include "Lsstream.h"
  41 #include "math_arrayinset.h"
  42 #include "math_charinset.h"
  43 #include "math_deliminset.h"
  44 #include "math_cursor.h"
  45 #include "math_factory.h"
  46 #include "math_fontinset.h"
  47 #include "math_hullinset.h"
  48 #include "math_iterator.h"
  49 #include "math_macrotable.h"
  50 #include "math_parser.h"
  51 #include "math_pos.h"
  52 #include "math_spaceinset.h"
  53 #include "undo_funcs.h"
  54 #include "textpainter.h"
  55 #include "frontends/Dialogs.h"
  56 #include "intl.h"
  57 #include "insets/insetcommandparams.h"
  58 #include "ref_inset.h"
  59
  60 using std::endl;
  61 using std::ostream;
  62 using std::vector;
  63 using std::abs;
  64
  65 MathCursor * mathcursor = 0;
  66
  67
  68 namespace {
  69
  70 // local global
  71 int first_x;
  72 int first_y;
  73
  74
  75
  76 bool openNewInset(BufferView * bv, UpdatableInset * new_inset)
  77 {
  78         if (!bv->insertInset(new_inset)) {
  79                 delete new_inset;
  80                 return false;
  81         }
  82         new_inset->edit(bv, true);
  83         return true;
  84 }
  85
  86
  87 } // namespace anon
  88
  89
  90
  91 InsetFormulaBase::InsetFormulaBase()
  92         : font_(), xo_(0), yo_(0)
  93 {
  94         // This is needed as long the math parser is not re-entrant
  95         initMath();
  96         //lyxerr << "sizeof MathInset: " << sizeof(MathInset) << "\n";
  97         //lyxerr << "sizeof MathMetricsInfo: " << sizeof(MathMetricsInfo) << "\n";
  98         //lyxerr << "sizeof MathCharInset: " << sizeof(MathCharInset) << "\n";
  99         //lyxerr << "sizeof LyXFont: " << sizeof(LyXFont) << "\n";
 100 }
 101
 102
 103 // simply scrap this function if you want
 104 void InsetFormulaBase::mutateToText()
 105 {
 106 #if 0
 107         // translate to latex
 108         ostringstream os;
 109         latex(NULL, os, false, false);
 110         string str = os.str();
 111
 112         // insert this text
 113         LyXText * lt = view_->getLyXText();
 114         string::const_iterator cit = str.begin();
 115         string::const_iterator end = str.end();
 116         for (; cit != end; ++cit)
 117                 view_->owner()->getIntl()->getTransManager().TranslateAndInsert(*cit, lt);
 118
 119         // remove ourselves
 120         //view_->owner()->dispatch(LFUN_ESCAPE);
 121 #endif
 122 }
 123
 124
 125 void InsetFormulaBase::handleFont
 126         (BufferView * bv, string const & arg, string const & font)
 127 {
 128         bv->lockedInsetStoreUndo(Undo::EDIT);
 129         bool sel = mathcursor->selection();
 130         if (sel)
 131                 updateLocal(bv, true);
 132         mathcursor->handleNest(createMathInset(font));
 133         mathcursor->insert(arg);
 134         if (!sel)
 135                 updateLocal(bv, false);
 136 }
 137
 138
 139 // Check if uses AMS macros
 140 void InsetFormulaBase::validate(LaTeXFeatures &) const
 141 {}
 142
 143
 144 void InsetFormulaBase::metrics(BufferView * bv, LyXFont const & f) const
 145 {
 146         font_ = f;
 147         metrics(bv);
 148 }
 149
 150
 151 void InsetFormulaBase::metrics(BufferView * bv) const
 152 {
 153         if (bv)
 154                 view_ = bv->owner()->view();
 155         MathMetricsInfo mi;
 156         mi.base.style = LM_ST_TEXT;
 157         mi.base.font  = font_;
 158         mi.base.font.setColor(LColor::math);
 159         par()->metrics(mi);
 160 }
 161
 162
 163 string const InsetFormulaBase::editMessage() const
 164 {
 165         return _("Math editor mode");
 166 }
 167
 168
 169 void InsetFormulaBase::edit(BufferView * bv, int x, int y, mouse_button::state)
 170 {
 171         if (!bv->lockInset(this))
 172                 lyxerr[Debug::MATHED] << "Cannot lock inset!!!" << endl;
 173         releaseMathCursor(bv);
 174         mathcursor = new MathCursor(this, true);
 175         metrics(bv);
 176         mathcursor->setPos(x + xo_, y + yo_);
 177         // if that is removed, we won't get the magenta box when entering an
 178         // inset for the first time
 179         bv->updateInset(this, false);
 180 }
 181
 182
 183 void InsetFormulaBase::edit(BufferView * bv, bool front)
 184 {
 185         if (!bv->lockInset(this))
 186                 lyxerr << "Cannot lock math inset in edit call!\n";
 187         releaseMathCursor(bv);
 188         mathcursor = new MathCursor(this, front);
 189         metrics(bv);
 190         bv->updateInset(this, false);
 191 }
 192
 193
 194 void InsetFormulaBase::insetUnlock(BufferView * bv)
 195 {
 196         if (mathcursor) {
 197                 if (mathcursor->inMacroMode()) {
 198                         mathcursor->macroModeClose();
 199                         updateLocal(bv, true);
 200                 }
 201                 releaseMathCursor(bv);
 202         }
 203         generatePreview();
 204         bv->updateInset(this, false);
 205 }
 206
 207
 208 void InsetFormulaBase::getCursorPos(BufferView *, int & x, int & y) const
 209 {
 210         // calling metrics here destroys the cached xo,yo positions e.g. in
 211         // MathParboxinset. And it would be too expensive anyway...
 212         //metrics(bv);
 213         if (!mathcursor) {
 214                 lyxerr << "getCursorPos - should not happen";
 215                 x = y = 0;
 216                 return;
 217         }
 218         mathcursor->getPos(x, y);
 219         x = mathcursor->targetX();
 220         x -= xo_;
 221         y -= yo_;
 222         //lyxerr << "getCursorPos: " << x << " " << y << "\n";
 223 }
 224
 225
 226 void InsetFormulaBase::toggleInsetCursor(BufferView * bv)
 227 {
 228         //lyxerr << "toggleInsetCursor: " << isCursorVisible() << "\n";
 229         if (isCursorVisible())
 230                 hideInsetCursor(bv);
 231         else
 232                 showInsetCursor(bv);
 233 }
 234
 235
 236 void InsetFormulaBase::showInsetCursor(BufferView * bv, bool)
 237 {
 238         if (isCursorVisible())
 239                 return;
 240         fitInsetCursor(bv);
 241         int x, y, asc, des;
 242         mathcursor->getPos(x, y);
 243         math_font_max_dim(font_, asc, des);
 244         bv->showLockedInsetCursor(x, y - yo_, asc, des);
 245         setCursorVisible(true);
 246         //lyxerr << "showInsetCursor: " << x << " " << y << "\n";
 247 }
 248
 249
 250 void InsetFormulaBase::hideInsetCursor(BufferView * bv)
 251 {
 252         if (!isCursorVisible())
 253                 return;
 254         bv->hideLockedInsetCursor();
 255         setCursorVisible(false);
 256         //lyxerr << "hideInsetCursor: \n";
 257 }
 258
 259
 260 void InsetFormulaBase::fitInsetCursor(BufferView * bv) const
 261 {
 262         if (!mathcursor)
 263                 return;
 264         int x, y, asc, des;
 265         math_font_max_dim(font_, asc, des);
 266         getCursorPos(bv, x, y);
 267         //y += yo_;
 268         //lyxerr << "fitInsetCursor: x: " << x << " y: " << y << " yo: " << yo_ << "\n";
 269         bv->fitLockedInsetCursor(x, y, asc, des);
 270 }
 271
 272
 273 void InsetFormulaBase::toggleInsetSelection(BufferView * bv)
 274 {
 275         if (mathcursor)
 276                 bv->updateInset(this, false);
 277 }
 278
 279
 280 vector<string> const InsetFormulaBase::getLabelList() const
 281 {
 282   return vector<string>();
 283 }
 284
 285
 286 void InsetFormulaBase::updateLocal(BufferView * bv, bool dirty)
 287 {
 288         bv->updateInset(this, dirty);
 289 }
 290
 291
 292 Inset::RESULT InsetFormulaBase::lfunMouseRelease(FuncRequest const & cmd)
 293 {
 294         if (!mathcursor)
 295                 return UNDISPATCHED;
 296
 297         BufferView * bv = cmd.view();
 298         hideInsetCursor(bv);
 299         showInsetCursor(bv);
 300         bv->updateInset(this, false);
 301
 302         if (cmd.button() == mouse_button::button3) {
 303                 // try to dispatch to enclosed insets first
 304                 if (mathcursor->dispatch(cmd) == MathInset::UNDISPATCHED) {
 305                         // launch math panel for right mouse button
 306                         bv->owner()->getDialogs().showMathPanel();
 307                 }
 308                 return DISPATCHED;
 309         }
 310
 311         if (cmd.button() == mouse_button::button2) {
 312                 mathcursor->selClear();
 313                 mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 314                 mathcursor->insert(asArray(bv->getClipboard()));
 315                 bv->updateInset(this, true);
 316                 return DISPATCHED;
 317         }
 318
 319         if (cmd.button() == mouse_button::button1) {
 320                 // try to dispatch to enclosed insets first
 321                 mathcursor->dispatch(cmd);
 322                 // try to set the cursor
 323                 //delete mathcursor;
 324                 //mathcursor = new MathCursor(this, x == 0);
 325                 //metrics(bv);
 326                 //mathcursor->setPos(x + xo_, y + yo_);
 327                 return DISPATCHED;
 328         }
 329
 330         return UNDISPATCHED;
 331 }
 332
 333
 334 Inset::RESULT InsetFormulaBase::lfunMousePress(FuncRequest const & cmd)
 335 {
 336         BufferView * bv = cmd.view();
 337         releaseMathCursor(bv);
 338         mathcursor = new MathCursor(this, cmd.x == 0);
 339
 340         if (cmd.button() == mouse_button::button1) {
 341                 // just set the cursor here
 342                 //lyxerr << "setting cursor\n";
 343                 metrics(bv);
 344                 first_x = cmd.x;
 345                 first_y = cmd.y;
 346                 mathcursor->selClear();
 347                 mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 348                 mathcursor->dispatch(cmd);
 349                 return DISPATCHED;
 350         }
 351
 352         if (cmd.button() == mouse_button::button3) {
 353                 mathcursor->dispatch(cmd);
 354                 //delete mathcursor;
 355                 return DISPATCHED;
 356         }
 357
 358         bv->updateInset(this, false);
 359         return DISPATCHED;
 360 }
 361
 362
 363 Inset::RESULT InsetFormulaBase::lfunMouseMotion(FuncRequest const & cmd)
 364 {
 365         if (!mathcursor)
 366                 return DISPATCHED;
 367
 368         if (mathcursor->dispatch(FuncRequest(cmd)) != MathInset::UNDISPATCHED)
 369                 return DISPATCHED;
 370
 371         if (abs(cmd.x - first_x) < 2 && abs(cmd.y - first_y) < 2) {
 372                 //lyxerr << "insetMotionNotify: ignored\n";
 373                 return DISPATCHED;
 374         }
 375         first_x = cmd.x;
 376         first_y = cmd.y;
 377
 378         if (!mathcursor->selection())
 379                 mathcursor->selStart();
 380
 381         BufferView * bv = cmd.view();
 382         hideInsetCursor(bv);
 383         mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 384         showInsetCursor(bv);
 385         bv->updateInset(this, false);
 386         return DISPATCHED;
 387 }
 388
 389
 390 Inset::RESULT InsetFormulaBase::localDispatch(FuncRequest const & cmd)
 391 {
 392         //lyxerr << "InsetFormulaBase::localDispatch: act: " << cmd.action
 393         //      << " arg: '" << cmd.argument
 394         //      << " x: '" << cmd.x
 395         //      << " y: '" << cmd.y
 396         //      << "' button: " << cmd.button() << "\n";
 397
 398         switch (cmd.action) {
 399                 case LFUN_MOUSE_PRESS:
 400                         return lfunMousePress(cmd);
 401                 case LFUN_MOUSE_MOTION:
 402                         return lfunMouseMotion(cmd);
 403                 case LFUN_MOUSE_RELEASE:
 404                         return lfunMouseRelease(cmd);
 405                 case LFUN_MOUSE_DOUBLE:
 406                         //lyxerr << "Mouse double\n";
 407                         return localDispatch(FuncRequest(LFUN_WORDSEL));
 408                 default:
 409                         break;
 410         }
 411
 412         if (!mathcursor)
 413                 return UNDISPATCHED;
 414
 415         BufferView * bv    = cmd.view();
 416         string argument    = cmd.argument;
 417         RESULT result      = DISPATCHED;
 418         bool sel           = false;
 419         bool was_macro     = mathcursor->inMacroMode();
 420         bool was_selection = mathcursor->selection();
 421
 422         hideInsetCursor(bv);
 423
 424         mathcursor->normalize();
 425         mathcursor->touch();
 426
 427         switch (cmd.action) {
 428
 429         case LFUN_MATH_MUTATE:
 430         case LFUN_MATH_DISPLAY:
 431         case LFUN_MATH_NUMBER:
 432         case LFUN_MATH_NONUMBER:
 433         case LFUN_TABINSERT:
 434         case LFUN_BREAKLINE:
 435         case LFUN_DELETE_LINE_FORWARD:
 436         case LFUN_INSERT_LABEL:
 437         case LFUN_MATH_EXTERN:
 438         case LFUN_TABULAR_FEATURE:
 439         case LFUN_PASTESELECTION:
 440         case LFUN_MATH_LIMITS:
 441                 bv->lockedInsetStoreUndo(Undo::EDIT);
 442                 mathcursor->dispatch(cmd);
 443                 updateLocal(bv, true);
 444                 break;
 445
 446         case LFUN_RIGHTSEL:
 447                 sel = true; // fall through...
 448         case LFUN_RIGHT:
 449                 result = mathcursor->right(sel) ? DISPATCHED : FINISHED_RIGHT;
 450                 //lyxerr << "calling scroll 20\n";
 451                 //scroll(bv, 20);
 452                 updateLocal(bv, false);
 453                 // write something to the minibuffer
 454                 //bv->owner()->message(mathcursor->info());
 455                 break;
 456
 457         case LFUN_LEFTSEL:
 458                 sel = true; // fall through
 459         case LFUN_LEFT:
 460                 result = mathcursor->left(sel) ? DISPATCHED : FINISHED;
 461                 updateLocal(bv, false);
 462                 break;
 463
 464         case LFUN_UPSEL:
 465                 sel = true; // fall through
 466         case LFUN_UP:
 467                 result = mathcursor->up(sel) ? DISPATCHED : FINISHED_UP;
 468                 updateLocal(bv, false);
 469                 break;
 470
 471         case LFUN_DOWNSEL:
 472                 sel = true; // fall through
 473         case LFUN_DOWN:
 474                 result = mathcursor->down(sel) ? DISPATCHED : FINISHED_DOWN;
 475                 updateLocal(bv, false);
 476                 break;
 477
 478         case LFUN_WORDSEL:
 479                 mathcursor->home(false);
 480                 mathcursor->end(true);
 481                 updateLocal(bv, false);
 482                 break;
 483
 484         case LFUN_HOMESEL:
 485         case LFUN_WORDLEFTSEL:
 486                 sel = true; // fall through
 487         case LFUN_HOME:
 488         case LFUN_WORDLEFT:
 489                 result = mathcursor->home(sel) ? DISPATCHED : FINISHED;
 490                 updateLocal(bv, false);
 491                 break;
 492
 493         case LFUN_ENDSEL:
 494         case LFUN_WORDRIGHTSEL:
 495                 sel = true; // fall through
 496         case LFUN_END:
 497         case LFUN_WORDRIGHT:
 498                 result = mathcursor->end(sel) ? DISPATCHED : FINISHED_RIGHT;
 499                 updateLocal(bv, false);
 500                 break;
 501
 502         case LFUN_PRIORSEL:
 503         case LFUN_PRIOR:
 504         case LFUN_BEGINNINGBUFSEL:
 505         case LFUN_BEGINNINGBUF:
 506                 result = FINISHED_UP;
 507                 updateLocal(bv, false);
 508                 break;
 509
 510         case LFUN_NEXTSEL:
 511         case LFUN_NEXT:
 512         case LFUN_ENDBUFSEL:
 513         case LFUN_ENDBUF:
 514                 result = FINISHED_DOWN;
 515                 updateLocal(bv, false);
 516                 break;
 517
 518         case LFUN_TAB:
 519                 mathcursor->idxNext();
 520                 updateLocal(bv, false);
 521                 break;
 522
 523         case LFUN_SHIFT_TAB:
 524                 mathcursor->idxPrev();
 525                 updateLocal(bv, false);
 526                 break;
 527
 528         case LFUN_DELETE_WORD_BACKWARD:
 529         case LFUN_BACKSPACE:
 530                 bv->lockedInsetStoreUndo(Undo::DELETE);
 531                 mathcursor->backspace();
 532                 updateLocal(bv, true);
 533                 break;
 534
 535         case LFUN_DELETE_WORD_FORWARD:
 536         case LFUN_DELETE:
 537                 bv->lockedInsetStoreUndo(Undo::DELETE);
 538                 mathcursor->erase();
 539                 bv->updateInset(this, true);
 540                 break;
 541
 542         //    case LFUN_GETXY:
 543         //      sprintf(dispatch_buffer, "%d %d",);
 544         //      dispatch_result = dispatch_buffer;
 545         //      break;
 546         case LFUN_SETXY: {
 547                 lyxerr << "LFUN_SETXY broken!\n";
 548                 int x = 0;
 549                 int y = 0;
 550                 istringstream is(cmd.argument.c_str());
 551                 is >> x >> y;
 552                 mathcursor->setPos(x, y);
 553                 updateLocal(bv, false);
 554                 break;
 555         }
 556
 557         case LFUN_PASTE:
 558                 if (was_macro)
 559                         mathcursor->macroModeClose();
 560                 bv->lockedInsetStoreUndo(Undo::EDIT);
 561                 mathcursor->selPaste();
 562                 updateLocal(bv, true);
 563                 break;
 564
 565         case LFUN_CUT:
 566                 bv->lockedInsetStoreUndo(Undo::DELETE);
 567                 mathcursor->selCut();
 568                 updateLocal(bv, true);
 569                 break;
 570
 571         case LFUN_COPY:
 572                 mathcursor->selCopy();
 573                 break;
 574
 575
 576         // Special casing for superscript in case of LyX handling
 577         // dead-keys:
 578         case LFUN_CIRCUMFLEX:
 579                 if (cmd.argument.empty()) {
 580                         // do superscript if LyX handles
 581                         // deadkeys
 582                         bv->lockedInsetStoreUndo(Undo::EDIT);
 583                         mathcursor->script(true);
 584                         updateLocal(bv, true);
 585                 }
 586                 break;
 587
 588         case LFUN_UMLAUT:
 589         case LFUN_ACUTE:
 590         case LFUN_GRAVE:
 591         case LFUN_BREVE:
 592         case LFUN_DOT:
 593         case LFUN_MACRON:
 594         case LFUN_CARON:
 595         case LFUN_TILDE:
 596         case LFUN_CEDILLA:
 597         case LFUN_CIRCLE:
 598         case LFUN_UNDERDOT:
 599         case LFUN_TIE:
 600         case LFUN_OGONEK:
 601         case LFUN_HUNG_UMLAUT:
 602                 break;
 603
 604         //  Math fonts
 605         case LFUN_GREEK_TOGGLE: handleFont(bv, cmd.argument, "lyxgreek"); break;
 606         case LFUN_BOLD:         handleFont(bv, cmd.argument, "textbf"); break;
 607         case LFUN_SANS:         handleFont(bv, cmd.argument, "textsf"); break;
 608         case LFUN_EMPH:         handleFont(bv, cmd.argument, "mathcal"); break;
 609         case LFUN_ROMAN:        handleFont(bv, cmd.argument, "mathrm"); break;
 610         case LFUN_CODE:         handleFont(bv, cmd.argument, "texttt"); break;
 611         case LFUN_FRAK:         handleFont(bv, cmd.argument, "mathfrak"); break;
 612         case LFUN_ITAL:         handleFont(bv, cmd.argument, "mathit"); break;
 613         case LFUN_NOUN:         handleFont(bv, cmd.argument, "mathbb"); break;
 614         case LFUN_FREE:         handleFont(bv, cmd.argument, "textrm"); break;
 615         case LFUN_DEFAULT:      handleFont(bv, cmd.argument, "textnormal"); break;
 616
 617         case LFUN_GREEK:
 618                 handleFont(bv, cmd.argument, "lyxgreek1");
 619                 if (cmd.argument.size())
 620                         mathcursor->interpret(cmd.argument);
 621                 break;
 622
 623         case LFUN_MATH_MODE:
 624                 if (mathcursor->currentMode())
 625                         handleFont(bv, cmd.argument, "textrm");
 626                 else {
 627                         mathcursor->niceInsert(MathAtom(new MathHullInset("simple")));
 628                         updateLocal(bv, true);
 629                 }
 630                 //bv->owner()->message(_("math text mode toggled"));
 631                 break;
 632
 633         case LFUN_MATH_SIZE:
 634 #if 0
 635                 if (!arg.empty()) {
 636                         bv->lockedInsetStoreUndo(Undo::EDIT);
 637                         mathcursor->setSize(arg);
 638                         updateLocal(bv, true);
 639                 }
 640 #endif
 641                 break;
 642
 643         case LFUN_INSERT_MATRIX:
 644                 if (!cmd.argument.empty()) {
 645                         bv->lockedInsetStoreUndo(Undo::EDIT);
 646                         mathcursor->interpret("matrix " + cmd.argument);
 647                         updateLocal(bv, true);
 648                 }
 649                 break;
 650
 651         case LFUN_SUPERSCRIPT:
 652         case LFUN_SUBSCRIPT:
 653         {
 654                 bv->lockedInsetStoreUndo(Undo::EDIT);
 655                 mathcursor->script(cmd.action == LFUN_SUPERSCRIPT);
 656                 updateLocal(bv, true);
 657                 break;
 658         }
 659
 660         case LFUN_MATH_DELIM:
 661         {
 662                 //lyxerr << "formulabase::LFUN_MATH_DELIM, arg: '" << arg << "'\n";
 663                 string ls;
 664                 string rs = split(cmd.argument, ls, ' ');
 665                 // Reasonable default values
 666                 if (ls.empty())
 667                         ls = '(';
 668                 if (rs.empty())
 669                         rs = ')';
 670
 671                 bv->lockedInsetStoreUndo(Undo::EDIT);
 672                 mathcursor->handleNest(MathAtom(new MathDelimInset(ls, rs)));
 673                 updateLocal(bv, true);
 674                 break;
 675         }
 676
 677         case LFUN_PROTECTEDSPACE:
 678         case LFUN_MATH_SPACE:
 679                 bv->lockedInsetStoreUndo(Undo::EDIT);
 680                 mathcursor->insert(MathAtom(new MathSpaceInset(",")));
 681                 updateLocal(bv, true);
 682                 break;
 683
 684         case LFUN_UNDO:
 685                 bv->owner()->message(_("Invalid action in math mode!"));
 686                 break;
 687
 688
 689         case LFUN_EXEC_COMMAND:
 690                 result = UNDISPATCHED;
 691                 break;
 692
 693         case LFUN_INSET_ERT:
 694                 // interpret this as if a backslash was typed
 695                 bv->lockedInsetStoreUndo(Undo::EDIT);
 696                 mathcursor->interpret('\\');
 697                 updateLocal(bv, true);
 698                 break;
 699
 700         case LFUN_BREAKPARAGRAPH:
 701         case LFUN_BREAKPARAGRAPHKEEPLAYOUT:
 702         case LFUN_BREAKPARAGRAPH_SKIP:
 703                 argument = "\n";
 704                 // fall through
 705
 706         case -1:
 707         case LFUN_INSERT_MATH:
 708         case LFUN_SELFINSERT:
 709                 if (!argument.empty()) {
 710                         bv->lockedInsetStoreUndo(Undo::EDIT);
 711                         if (argument.size() == 1)
 712                                 result = mathcursor->interpret(argument[0]) ? DISPATCHED : FINISHED_RIGHT;
 713                         else
 714                                 result = mathcursor->interpret(argument) ? DISPATCHED : FINISHED_RIGHT;
 715                         updateLocal(bv, true);
 716                 }
 717                 break;
 718
 719         case LFUN_MATH_PANEL:
 720                 result = UNDISPATCHED;
 721                 break;
 722
 723         case LFUN_ESCAPE:
 724                 if (mathcursor->selection())
 725                         mathcursor->selClear();
 726                 else
 727                         result = UNDISPATCHED;
 728                 break;
 729
 730         case LFUN_INSET_TOGGLE:
 731                 mathcursor->insetToggle();
 732                 updateLocal(bv, true);
 733                 break;
 734
 735         case LFUN_REF_INSERT:
 736                 //if (argument.empty()) {
 737                 //      InsetCommandParams p("ref");
 738                 //      owner_->getDialogs().createRef(p.getAsString());
 739                 //} else {
 740                 //      InsetCommandParams p;
 741                 //      p.setFromString(argument);
 742
 743                 //      InsetRef * inset = new InsetRef(p, *buffer_);
 744                 //      if (!insertInset(inset))
 745                 //              delete inset;
 746                 //      else
 747                 //              updateInset(inset, true);
 748                 //}
 749                 //
 750                 if (cmd.argument.empty()) {
 751                         InsetCommandParams p("ref");
 752                         bv->owner()->getDialogs().createRef(p.getAsString());
 753                 } else {
 754                         //mathcursor->handleNest(new InsetRef2);
 755                         //mathcursor->insert(arg);
 756                         mathcursor->insert(MathAtom(new RefInset(cmd.argument)));
 757                 }
 758                 updateLocal(bv, true);
 759                 break;
 760
 761         default:
 762                 result = UNDISPATCHED;
 763         }
 764
 765         mathcursor->normalize();
 766         mathcursor->touch();
 767
 768         lyx::Assert(mathcursor);
 769
 770         if (mathcursor->selection() || was_selection)
 771                 toggleInsetSelection(bv);
 772
 773         if (result == DISPATCHED || result == DISPATCHED_NOUPDATE ||
 774             result == UNDISPATCHED) {
 775                 fitInsetCursor(bv);
 776                 showInsetCursor(bv);
 777                 revealCodes(bv);
 778         } else {
 779                 releaseMathCursor(bv);
 780                 bv->unlockInset(this);
 781         }
 782
 783         return result;  // original version
 784 }
 785
 786
 787 void InsetFormulaBase::revealCodes(BufferView * bv) const
 788 {
 789         if (!mathcursor)
 790                 return;
 791         bv->owner()->message(mathcursor->info());
 792
 793 #if 0
 794         // write something to the minibuffer
 795         // translate to latex
 796         mathcursor->markInsert();
 797         ostringstream os;
 798         write(NULL, os);
 799         string str = os.str();
 800         mathcursor->markErase();
 801         string::size_type pos = 0;
 802         string res;
 803         for (string::iterator it = str.begin(); it != str.end(); ++it) {
 804                 if (*it == '\n')
 805                         res += ' ';
 806                 else if (*it == '\0') {
 807                         res += "  -X-  ";
 808                         pos = it - str.begin();
 809                 }
 810                 else
 811                         res += *it;
 812         }
 813         if (pos > 30)
 814                 res = res.substr(pos - 30);
 815         if (res.size() > 60)
 816                 res = res.substr(0, 60);
 817         bv->owner()->message(res);
 818 #endif
 819 }
 820
 821
 822 Inset::Code InsetFormulaBase::lyxCode() const
 823 {
 824         return Inset::MATH_CODE;
 825 }
 826
 827
 828 int InsetFormulaBase::ylow() const
 829 {
 830         return yo_ - ascent(view(), font_);
 831 }
 832
 833
 834 int InsetFormulaBase::yhigh() const
 835 {
 836         return yo_ + descent(view(), font_);
 837 }
 838
 839
 840 int InsetFormulaBase::xlow() const
 841 {
 842         return xo_;
 843 }
 844
 845
 846 int InsetFormulaBase::xhigh() const
 847 {
 848         return xo_ + width(view(), font_);
 849 }
 850
 851
 852 /////////////////////////////////////////////////////////////////////
 853
 854
 855 bool InsetFormulaBase::searchForward(BufferView * bv, string const & str,
 856                                      bool, bool)
 857 {
 858 #ifdef WITH_WARNINGS
 859 #warning pretty ugly
 860 #endif
 861         static InsetFormulaBase * lastformula = 0;
 862         static MathIterator current = MathIterator(ibegin(par().nucleus()));
 863         static MathArray ar;
 864         static string laststr;
 865
 866         if (lastformula != this || laststr != str) {
 867                 //lyxerr << "reset lastformula to " << this << "\n";
 868                 lastformula = this;
 869                 laststr = str;
 870                 current = ibegin(par().nucleus());
 871                 ar.clear();
 872                 mathed_parse_cell(ar, str);
 873         } else {
 874                 ++current;
 875         }
 876         //lyxerr << "searching '" << str << "' in " << this << ar << endl;
 877
 878         for (MathIterator it = current; it != iend(par().nucleus()); ++it) {
 879                 if (it.cell().matchpart(ar, it.back().pos_)) {
 880                         bv->unlockInset(bv->theLockingInset());
 881                         if (!bv->lockInset(this)) {
 882                                 lyxerr << "Cannot lock inset" << endl;
 883                                 return false;
 884                         }
 885                         delete mathcursor;
 886                         mathcursor = new MathCursor(this, true);
 887                         metrics(bv);
 888                         mathcursor->setSelection(it, ar.size());
 889                         current = it;
 890                         it.jump(ar.size());
 891                         updateLocal(bv, false);
 892                         return true;
 893                 }
 894         }
 895
 896         //lyxerr << "not found!\n";
 897         lastformula = 0;
 898         return false;
 899 }
 900
 901
 902 bool InsetFormulaBase::searchBackward(BufferView * bv, string const & what,
 903                                       bool a, bool b)
 904 {
 905         lyxerr[Debug::MATHED] << "searching backward not implemented in mathed\n";
 906         return searchForward(bv, what, a, b);
 907 }
 908
 909
 910 bool InsetFormulaBase::display() const
 911 {
 912         return par()->asHullInset() && par()->asHullInset()->display();
 913 }
 914
 915
 916 /////////////////////////////////////////////////////////////////////
 917
 918
 919 void mathDispatchCreation(FuncRequest const & cmd, bool display)
 920 {
 921         BufferView * bv = cmd.view();
 922         // use selection if available..
 923         //string sel;
 924         //if (action == LFUN_MATH_IMPORT_SELECTION)
 925         //      sel = "";
 926         //else
 927
 928         string sel = bv->getLyXText()->selectionAsString(bv->buffer(), false);
 929
 930         if (sel.empty()) {
 931                 InsetFormula * f = new InsetFormula(bv);
 932                 if (openNewInset(bv, f)) {
 933                         bv->theLockingInset()->
 934                                 localDispatch(FuncRequest(bv, LFUN_MATH_MUTATE, "simple"));
 935                         // don't do that also for LFUN_MATH_MODE unless you want end up with
 936                         // always changing to mathrm when opening an inlined inset
 937                         // -- I really hate "LyXfunc overloading"...
 938                         if (display)
 939                                 f->localDispatch(FuncRequest(bv, LFUN_MATH_DISPLAY));
 940                         f->localDispatch(FuncRequest(bv, LFUN_INSERT_MATH, cmd.argument));
 941                 }
 942         } else {
 943                 // create a macro if we see "\\newcommand" somewhere, and an ordinary
 944                 // formula otherwise
 945                 InsetFormulaBase * f;
 946                 if (sel.find("\\newcommand") == string::npos &&
 947                                 sel.find("\\def") == string::npos)
 948                         f = new InsetFormula(sel);
 949                 else
 950                         f = new InsetFormulaMacro(sel);
 951                 bv->getLyXText()->cutSelection(bv);
 952                 openNewInset(bv, f);
 953         }
 954         cmd.message(N_("Math editor mode"));
 955 }
 956
 957
 958 void mathDispatch(FuncRequest const & cmd)
 959 {
 960         BufferView * bv = cmd.view();
 961         if (!bv->available())
 962                 return;
 963
 964         switch (cmd.action) {
 965
 966                 case LFUN_MATH_DISPLAY:
 967                         mathDispatchCreation(cmd, true);
 968                         break;
 969
 970                 case LFUN_MATH_MODE:
 971                         mathDispatchCreation(cmd, false);
 972                         break;
 973
 974                 case LFUN_MATH_IMPORT_SELECTION:
 975                         mathDispatchCreation(cmd, false);
 976                         break;
 977
 978                 case LFUN_MATH_MACRO:
 979                         if (cmd.argument.empty())
 980                                 cmd.errorMessage(N_("Missing argument"));
 981                         else {
 982                                 string s = cmd.argument;
 983                                 string const s1 = token(s, ' ', 1);
 984                                 int const na = s1.empty() ? 0 : lyx::atoi(s1);
 985                                 openNewInset(bv, new InsetFormulaMacro(token(s, ' ', 0), na));
 986                         }
 987                         break;
 988
 989                 case LFUN_GREEK:
 990                 case LFUN_INSERT_MATH:
 991                 case LFUN_INSERT_MATRIX:
 992                 case LFUN_MATH_DELIM: {
 993                         InsetFormula * f = new InsetFormula(bv);
 994                         if (openNewInset(bv, f)) {
 995                                 bv->theLockingInset()->
 996                                         localDispatch(FuncRequest(bv, LFUN_MATH_MUTATE, "simple"));
 997                                 bv->theLockingInset()->localDispatch(cmd);
 998                         }
 999                         break;
1000                 }
1001                 default:
1002                         break;
1003         }
1004 }